[INFO] cloning repository https://github.com/SEQUOIIA/ssh-notify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SEQUOIIA/ssh-notify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSEQUOIIA%2Fssh-notify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSEQUOIIA%2Fssh-notify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87da336e05f8a5178af86025256ad4fd5e122b70
[INFO] checking SEQUOIIA/ssh-notify against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSEQUOIIA%2Fssh-notify" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SEQUOIIA/ssh-notify
[INFO] finished tweaking git repo https://github.com/SEQUOIIA/ssh-notify
[INFO] tweaked toml for git repo https://github.com/SEQUOIIA/ssh-notify written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SEQUOIIA/ssh-notify on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SEQUOIIA/ssh-notify already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55529fcf556abc773981e92094546d151b4da5625d697f450ff7dedf61089384
[INFO] running `Command { std: "docker" "start" "-a" "55529fcf556abc773981e92094546d151b4da5625d697f450ff7dedf61089384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55529fcf556abc773981e92094546d151b4da5625d697f450ff7dedf61089384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55529fcf556abc773981e92094546d151b4da5625d697f450ff7dedf61089384", kill_on_drop: false }`
[INFO] [stdout] 55529fcf556abc773981e92094546d151b4da5625d697f450ff7dedf61089384
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74422665938d776e9326c28b12e8c06d1e6d1b2ce0b4b355c54f726e39527182
[INFO] running `Command { std: "docker" "start" "-a" "74422665938d776e9326c28b12e8c06d1e6d1b2ce0b4b355c54f726e39527182", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling openssl-sys v0.9.75
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling openssl v0.10.41
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking futures-io v0.3.24
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[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.145
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[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
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[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
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[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking tracing v0.1.36
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[INFO] [stderr]     Checking base64 v0.9.3
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[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking lettre v0.9.6
[INFO] [stderr]     Checking lettre_email v0.9.4
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.12
[INFO] [stderr]     Checking ssh-notify v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/config.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::current_exe`
[INFO] [stdout]   --> src/agent/email.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     use std::env::current_exe;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/config.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Discord` and `Email`
[INFO] [stdout]  --> src/config.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::agent::{Discord, Email};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/model.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fs::{OpenOptions};
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/config.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Discord` and `Email`
[INFO] [stdout]  --> src/config.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::agent::{Discord, Email};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/model.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut config : Config = toml::from_slice(&buf).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/agent/discord.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let res = client.post(url.as_str())
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/config.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{error};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::current_exe`
[INFO] [stdout]   --> src/agent/email.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     use std::env::current_exe;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fs::{OpenOptions};
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut config : Config = toml::from_slice(&buf).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Agents` is never constructed
[INFO] [stdout]   --> src/config.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Agents {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `socket_addr` and `socket_addr_as_ref` are never used
[INFO] [stdout]    --> src/model.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout]  41 | impl Address {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn socket_addr(&self) -> IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn socket_addr_as_ref(&self) -> &IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/agent/discord.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let res = client.post(url.as_str())
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Agents` is never constructed
[INFO] [stdout]   --> src/config.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Agents {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/model.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Agent {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 15 |     pub fn send(&self, vars : Vars) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `socket_addr` and `socket_addr_as_ref` are never used
[INFO] [stdout]    --> src/model.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout]  41 | impl Address {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn socket_addr(&self) -> IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn socket_addr_as_ref(&self) -> &IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut config : Config = toml::from_slice(&buf).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/agent/discord.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let res = client.post(url.as_str())
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Agents` is never constructed
[INFO] [stdout]   --> src/config.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Agents {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Address` is never constructed
[INFO] [stdout]   --> src/model.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Address(IpAddr);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_whitelisted`, `socket_addr`, and `socket_addr_as_ref` are never used
[INFO] [stdout]    --> src/model.rs:42:12
[INFO] [stdout]     |
[INFO] [stdout]  41 | impl Address {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  42 |     pub fn new(val : String) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn is_whitelisted(&self, networks : &super::config::WhitelistedNetwork) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn socket_addr(&self) -> IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn socket_addr_as_ref(&self) -> &IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let mut config : Config = toml::from_slice(&buf).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/agent/discord.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let res = client.post(url.as_str())
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Agents` is never constructed
[INFO] [stdout]   --> src/config.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Agents {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/model.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Agent {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 15 |     pub fn send(&self, vars : Vars) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `socket_addr` and `socket_addr_as_ref` are never used
[INFO] [stdout]    --> src/model.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout]  41 | impl Address {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn socket_addr(&self) -> IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn socket_addr_as_ref(&self) -> &IpAddr {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, openssl v0.10.41
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "74422665938d776e9326c28b12e8c06d1e6d1b2ce0b4b355c54f726e39527182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74422665938d776e9326c28b12e8c06d1e6d1b2ce0b4b355c54f726e39527182", kill_on_drop: false }`
[INFO] [stdout] 74422665938d776e9326c28b12e8c06d1e6d1b2ce0b4b355c54f726e39527182
